My Shiloh .45-2.4 (aka .45 90) has never had a grease groove bullet down its bore. This round was the acme of the Sharps long range rifles and I believe paper patching is the best method for loading and firing these fine rifles.
In addition to its use as a target round, the paper patch bullet harvested most of the bison taken by commercial hunters. The main benefit for hunting shooting numerous rounds per day is the elimination of leading, and for the long range, a slick sided bullet provided less drag which provided better bullet stability and consequently required less adjustment for elevation.
I harvested a fine bull bison in Hartsel, CO a couple of years ago using Paper patched bulletss. Two shots dropped this magnificent beast in his tracks.
My target load consists of Rocky Mountain Cartidge Comapny thick walled brass, neck sized with a Meachum sizing die, CCI BR-2 primers (with newspaper was seated under the primer), 95 grains Swiss 1.5FG powder with minimal compression, a 0.60 Walters Wad and a BACO .444 money bullet dry wrapped with #9 Seth Cole drafting paper using a custom template crafted by Orville Loomer. The bullet is seated 0.10 inch in the case which allows for excellent bullet to bore alignment.
Since no grease cookie is employed with this target load, a strict wiping regimen is necessary to remove the fouling and obtain a consistent bore condition for each shot. I use a Delrin flexible wiping rod from Arizona Sharpshooters and a damp Arsenal paper patch damped with Arizona Sharpshooters wiping solution, followed by two dry patches.
Perhaps paper patching requires a little more effort, but not much more, but the results are impressive and in my opinion, more authentic.
Randy Wright wrote an excellent book with step by step graphics for paper patch reloading for beginners. Orville Loomer has a short, but highly informative pamphlet which uses original Sharps Rifle Company information that I found particularly useful. Both are available from Shiloh Sharps. Brent Danielson has a guide to paper patching available via Google and he has achieved impressive results. The late Dan Theodore (may he rest in peace) also contributed immeasurably to this topic. Shiloh Sharps forum contains a huge amount of info for the beginner and advanced reloaded as well.
A lot of effort is expended into rediscovering what the Old Dead Guys knew as a matter of course.
You won't be sorry wandering down the enticing pathway to paper patching, whether it be for hunting or for target.
Kinchafoonee Kid